Dental instrument



FIG. 1 illustrates a back view of the dental instrument, showing our new and ornamental design;

FIG. 2 illustrates a side view thereof;

FIG. 3 illustrates a front view thereof;

FIG. 4 illustrates an alternate side view thereof;

FIG. 5 illustrates an enlarged bottom view thereof;

FIG. 6 illustrates an enlarged top view thereof; and,

FIG. 7 illustrates a perspective view thereof.

The portions of the dental instrument shown in broken lines in the figures attached hereto form no part of the claimed design. 

CLAIM The ornamental design for a dental instrument, as shown and described. 